Rolling-mill guide



L. M. EKS TRAND. ROLLING MILL GUIDE.

APPLICATION FILED FEB. 19.1921.

Patented Feb. 7, 1922 3 SHEETS-MEET l- "MWM j filmses L. M. EKS'TRAND.

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ROLLING M FPLICATION Patented Feb; 7, 1922.

3 SHEETS-SHEET 3.

Jars M17014 UNITED STATES PATENT OFFICE.

LABS M. EKSTRAND, OF WAUKEGAN, ILLINOIS, ASSIGNOR TO THE AMERICAN STEELAND WIRE COMPANY OF NEW JERSEY, A CORPORATION OF NEW JERSEY.

ROLLING-MILL GUIDE.

Specification of Letters Patent.

Patented Feb. 7, 1922.

To all whom it may concern:

Be it known that I, LARS M. EKSTRAND, a citizen of the United States,and resident of Waukegan, in the county of Lake and State of Illinois,have invented certa1n new and useful Improvements in Roll1ng- M1llGu1des, of which the following is a speclfioatlon.

This invention relates to rolling m1ll guides, and more particularly togu des used in rolling mills to guide bars or rods into the rolls, andhas for one of 1ts ob ects the provision of a twisted guide of thisclass that may be rotated in the guide box as the guide passage wears.

Another object of the invention is to provide means for allowingtheescape of scale, water, and the like matter from the gulde passage.

Another objectof the lnventlon 1s to provide improved means for holdingthe guide in the guide-box. u

A still further object of my invention is to provide the novelarrangement, deslgn, and combination of parts as hereinafter fully setforth in the following specification, and illustrated in theaccompanying drawlngs, 1n which:

Figure 1 is a rear side elevation of a guide rest or cross bar havingtwo guide-boxes and guides, constructed in accordance with thisinvention, mounted thereon.

Fi ure 2 is a sectional elevation on the line II I of Figure 1;

Figure 3 is a sectional elevation on the hue III-III of Figure 1. Figure4 is a perspective elevation of the twisted guide.

Figure 5 is a perspective elevation of the bottom half of the twistedguide.

Figures 6, 7, and 8 are sectional elevations of the twisted uide,respectivel on the lines VI-VI, I-VII, and V IIVIII of Fi re 4.

Re erring particularly to the drawings, the numeral 2 designates thecross-bar as a whole which is adapted to be bolted or otherwise securedto the housings of a stand of rolls and to support the guide-boxes andguides to which the invention is particularly directed. v

The cross-bar 2 has a vertical longitudinally extending slot 3 extendingtherethrough, adjacent its center line and terminating short of eachend. The bar 2 has its '15, and hasits close upper face cut awayparallel with the slot 3 forming shoulders 4, and is further cut awayfrom the ends of the slot 3 to the end of the cross bar forming ashallow fiat bottom groove 5 at each end of the slot 3.

The cross-bar 2 also has its rear face cut away forming an under-cutgroove 6 along its entire length for a purpose to be described.

A guide-box designated generally by the numeral 8 is mounted on thecross-bar 2 and supports a cylindrical guide designated generally by thenumeral 9 in such manner that it may be rotated for adjustment.

The guide-box 8 comprises a body portion 10 adapted to extendtransversely of the cross-bar and is provided on its bottom face withtransversely extending spaced lugs 11 and 12 adapted to abut theshoulders 4 formed on the upper face of the cross bar parallel with thegroove 3.

The body portlon 10 of the uide-box is cut away between the lugs 11 an12 forming a rounded bearing surface for a guide strap 15, which issubstantially U-shaped and has its arms, which terminate in aperturedears 18 and 19,,extending upwardly parallel with the sides of the bodyportion 10 of the guidebox. The strap 15 is adapted for use when theguide box is used adjacent the ends of the cross-bar or guide rest 2beyond the slot 3 and above the fiat groove 5.

The guide box 8 is provided with a tail portion 20 extending downwardlyat right angles to the body portion 10 and having its lower portion cutaway forming an open ended slot'2l adapted to fit around a bolt 22having its head mounted within the undercut groove 6 and having a nut'23thereon adapted to be screwed against the tail 20 and clamp the guidebox in position.

The upper face of the body portion 10 of the guide-box is formed concaveand is provided with a depression or socket 24 adjacent'its one end fora purpose to be described.

A guide strap 25 is adapted for use with the guide-boxes when they arelocated on that portion of the cross bar provided with the slot 3 and issubstantially U-shaped. The

strap 25 is considerabl lon er than the strap or ttom end supported on across-bar clip 26 which bridges the slot 3. The arms of the strap 25termi-- nate inapertured cars 29 and 30 and extend upwardly with thesides of the body portion 10 of the guide-box 8.

The guide 9 is clamped against the guidebox 8 so as to be normally heldagainst rotation by a clip 31 engaged in the apertured ears 1819, and29-30, of the straps 15 and 25, respectively, and a wedge 32 which isforced between the clip 31 and guide 9.

The guide 9 is of cylindrical contour, is mounted in the concave upperface of the guide-box 8 for rotary movement, and is composed of bottomand top sections 35 and 36, respectively. The bottom section 35 has aretaining lu 37 projecting downwardly therefrom a j acent the forwardend of the section and adapted tov fit within the socket or depression24 in the guide-box 8.

The abutting faces of the sections 35 and 36 are each'provided with'acentrally twisted groove 3,8'and 39, respectively, said groovesco-operating with each other to form a twisted oval guide passage. Theforward end of the grooves 33 and 39 are enlarged toward the forwardendof the guide sections to form an enlarged bell-shaped en-' trance 40to the guide passage.

Spacing lugs 41 are formed on the upper or abutting face of the bottomguide section 35 and serve to space the sections 35 and 36 apart formingescape passageways communicating with the guide passage to permit theescape of scale and water therefrom, during operation of the guide.

The bottom section 35 of the guide is pro-- vided with upwardlyprojecting locking lugs 43. along each side edge adjacent its forwardend adapted to be engaged in cooperating recesses or depressions 44 inthe upper section 36 of the guide. Other look ing lugs 45 are providedadjacent the rear end of the bottom section 35 of the guide and projectupwardly so as to be engaged in co-operating recesses or depressions 46in the upper section 36 of the guide. The locking lugs 4345 and theirco-operating recesses 44-46 form a firm lock between the sections 35 and36 of the guide against longitudinal movement one with the other.

The forward end of the guide is ,tapered forming a substantially conicalnose 47 permitting the guide to be adjusted close into the pass betweenthe rolls, which are designaplerll3 in the drawings by the letters A anThe rear end of each of the sections is slightly. flattened forming atool grip 48 adapted to be gripped by a wrench or other such tool toturn the guide during operation.

The advantages of the improved guide, constructed in accordance withthis invention, will be readil appreciated by those skilled in the art.Kly improved guide has its sections interlocked so as to maintain properalinement. Provision is made for through the slot 3 and paralleling itin the guide-box during operation to take up wear of the guide passage.

This last named advantage is one of the.

most important since it prolongs the life of the guide, as it may beadjusted to different positions until the guide passage which isnormally oval-shaped is worn substantially round.

'Due to the use of forged steel guide straps the guide boxes areconsiderably narrower than heretofore used, and therefore, a largernumber of guide-boxes and guides can be assembled on the cross-bar,thereby providing for the use of more passes in rolls of a given lengththan has been possible heretofore.

It will be understood that while an oval guide passage is-shown in theconstruction of'the drawings, other shapes may be readily used accordingto the shape of the rod or article being rolled.

While I have shown and described aparticular embodimentof my invention,it will be expressly understood that I do not wish to be limited theretosince it is only illustrative, and various changes in design,arrangement and combination of parts will readily suggest themselves tothose skilled in the art, and may be made without departing from thespirit of my invention, as defined in the appended claims.

I claim 1. The combination with a cross-bar, of a guide-box mounted onsaid cross bar, a guide mounted in-said guide-box, a guide strapextending upwardly on each side of said guide-box, a clip engaging saidstrap, and a wedge between said clip and said guide for holding saidguide rigidly in said guide-box.

2. In combination, a-guide-box having a socket, a twisted guidemountedfor rotation in said guide-box, a lug on said guide adapted to beengaged in said socket to prevent longitudinal movement of said guide, a

guide strap extending upwardly on each side ofsaid guide-box havingapertures therein, a clip engaged in said. apertures, and means engagingsaid clip and said guide for normally holding said guide againstrotation.

3. A twisted guide member comprising a two-piece cylindrical member,lugs on one of said pieces interfitting in recesses in the other of'said pieces to, lock said pieces against longitudinal displacement onewith the other, lugs on the abutting faces of said pieces for spacingsaid pieces apart, said pieces having centrally arranged co-operatingtwisted grooves in their abutting faces forming a guide passage, saidguide memmeans for spacing said pieces apart forming ber having its oneend squared for the retransverse openings through said guide to ceptionof a tool for turmng during operaallow the escape of water, scale andother 10 tio-n. matter from the guide passage.

4. A twisted guide comprising a two-piece In testimony whereof I havehereunto member having a twisted guide passage exsigned my name. tendinglongitudinally therethrough, and LARS M. EKSTRAND.

